/Engine/Plugins/Runtime/nDisplay/Source/DisplayCluster/Public/Render/PostProcess/IDisplayClusterPostProcess.h
PP operation on a frame region after warp&blend
virtual void PerformPostProcessFrameAfterWarpBlend_RenderThread ( [FRHICommandListImmediate](API\Runtime\RHI\FRHICommandListImmediate) & RHICmdList, const [TArray](API\Runtime\Core\Containers\TArray)< FRHITexture2D * > * InFrameTargets, const [TArray](API\Runtime\Core\Containers\TArray)< FRHITexture2D * > * InAdditionalFrameTargets ) const